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For the Inventor, By the Inventor

Alstead, NH, United States of America

Bortech Corporation


USPTO Granted Patents = 2

Forward Citations = 23

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2 inventors (with patents filed for the assignee):

goldMedal Rees H Acheson (2 out of 6 patents)

silverMedal Thomas H Esslinger (1 out of 14 patents)


2 patents:

1. 5558268 - Torch assembly for a conical surface (1996-09-24),
2. 5298710 - Large bore welding apparatus (1994-03-29),
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USPTO Data Jan 1 1976 - Sep 29 2026

2 Patents

#2 in Alstead, NH

#634 in New Hampshire

#94,730 in US

Alstead, NH (US)
Alstead, NH, United States of America

Bortech Corporation

Forward Citations = 23

2 inventors:

goldMedal Rees H Acheson (2 out of 6 patents)

silverMedal Thomas H Esslinger (1 out of 14 patents)

Please report any incorrect information to [email protected]
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